Reference

OpcClient.CallMethod Method

Type

OpcClient

Namespace

Opc.UaFx.Client

Assembly

Opc.UaFx.Advanced.dll

Package

Opc.UaFx.Advanced v2.59.0

Members

OpcClient Members

Also in

Opc.UaFx.Client

4 overloads

Overload	Description
CallMethod(OpcNodeId, OpcNodeId)	Calls the method identified by the methodId on the object identified by the objectId specified without any input arguments.
CallMethod(OpcNodeId, OpcNodeId, IEnumerable<object>)	Calls the method identified by the methodId on the object identified by the objectId specified using the parameters as the values of its input arguments.
CallMethod(OpcNodeId, OpcNodeId, params object[])	Calls the method identified by the methodId on the object identified by the objectId specified using the parameters as the values of its input arguments.
CallMethod(OpcCallMethod)since v2.8	Calls the method as defined by the command specified.

Exceptions (all overloads)

Exception	Condition
OpcException	The client is not connected to the server, the service execution failed or the server reported a bad status code for the call or for one of its input arguments.
ObjectDisposedException	The object has been disposed of.

CallMethod(OpcNodeId, OpcNodeId)

Calls the method identified by the methodId on the object identified by the objectId specified without any input arguments.

public object[] CallMethod(OpcNodeId objectId, OpcNodeId methodId)

Public Function CallMethod(
    objectId As OpcNodeId,
    methodId As OpcNodeId) As Object()

Parameters

Name	Type	Description
objectId	OpcNodeId	The OpcNodeId of the object on which the method is to be called.
methodId	OpcNodeId	The OpcNodeId of the method to call.

Returns

Object[]

An array of the values of the output arguments returned by the method.

Exceptions

Exception	Condition
ArgumentException	The objectId is a null identifier (see IsNull).
ArgumentNullException	The objectId or methodId is a null reference (Nothing in Visual Basic).

CallMethod(OpcNodeId, OpcNodeId, IEnumerable<object>)

Calls the method identified by the methodId on the object identified by the objectId specified using the parameters as the values of its input arguments.

public object[] CallMethod(
    OpcNodeId objectId,
    OpcNodeId methodId,
    IEnumerable<object> parameters)

Public Function CallMethod(
    objectId As OpcNodeId,
    methodId As OpcNodeId,
    parameters As IEnumerable(Of Object)) As Object()

Parameters

Name	Type	Description
objectId	OpcNodeId	The OpcNodeId of the object on which the method is to be called.
methodId	OpcNodeId	The OpcNodeId of the method to call.
parameters	IEnumerable<Object>	A sequence of the values to pass as the input arguments of the method.

Returns

Object[]

An array of the values of the output arguments returned by the method.

Exceptions

Exception	Condition
ArgumentException	The objectId is a null identifier (see IsNull).
ArgumentNullException	The objectId, methodId or parameters is a null reference (Nothing in Visual Basic).

CallMethod(OpcNodeId, OpcNodeId, params object[])

Calls the method identified by the methodId on the object identified by the objectId specified using the parameters as the values of its input arguments.

public object[] CallMethod(
    OpcNodeId objectId,
    OpcNodeId methodId,
    params object[] parameters)

Public Function CallMethod(
    objectId As OpcNodeId,
    methodId As OpcNodeId,
    ParamArray parameters As Object()) As Object()

Parameters

Name	Type	Description
objectId	OpcNodeId	The OpcNodeId of the object on which the method is to be called.
methodId	OpcNodeId	The OpcNodeId of the method to call.
parameters	params Object[]	An array of the values to pass as the input arguments of the method.

Returns

Object[]

An array of the values of the output arguments returned by the method.

Exceptions

Exception	Condition
ArgumentException	The objectId is a null identifier (see IsNull).
ArgumentNullException	The objectId, methodId or parameters is a null reference (Nothing in Visual Basic).

CallMethod(OpcCallMethod)

since v2.8

Calls the method as defined by the command specified.

public object[] CallMethod(OpcCallMethod command)

Public Function CallMethod(command As OpcCallMethod) As Object()

Parameters

Name	Type	Description
command	OpcCallMethod	The OpcCallMethod command which defines the object, the method and the values of the input arguments of the call.

Returns

Object[]

An array of the values of the output arguments returned by the method.